AMERICAN Airlines Flight 11: A Boeing 767 en route from Boston to Los Angeles crashed into the World Trade Center.

The plane was carrying 81 passengers, nine flight attendants and two pilots.

-American Airlines Flight 77: A Boeing 757 en route from Dulles Airport near Washington to Los Angeles crashed into the World Trade Center. The plane was carrying 58 passengers, four flight attendants and two pilots.

-United Airlines Flight 93: A Boeing 757, crashed southeast of Pittsburgh while en route from Newark, N.J. to San Francisco. The plane was carrying 38 passengers, two pilots and five flight attendants.

-United Airlines Flight 175: A Boeing 767. The flight was bound from Boston to Los Angeles. It was carrying 56 passengers, two pilots and seven flight attendants. The airline would not say where that plane crashed.